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| author | Thomas Hindoe Paaboel Andersen <phomes@gmail.com> | 2015-01-20 00:44:40 +0100 |
|---|---|---|
| committer | Peter Hutterer <peter.hutterer@who-t.net> | 2015-08-27 14:59:27 +1000 |
| commit | 034be31159f22ce28d84994d541a45ee44963fd8 (patch) | |
| tree | 1cd4d585e116197d5ff282c6285cd4818e2f6d5a /src/evdev.c | |
| parent | Add the default evdev config (diff) | |
| download | xf86-input-evdev-034be31159f22ce28d84994d541a45ee44963fd8.tar.gz xf86-input-evdev-034be31159f22ce28d84994d541a45ee44963fd8.tar.bz2 xf86-input-evdev-034be31159f22ce28d84994d541a45ee44963fd8.zip | |
Add "Resolution" option for mice to the evdev driver
It can be used to scale the resolution of a mouse to that of a 1000 DPI
mouse. This can be useful to make high resolution mice less sensitive
without turning off acceleration. The target of 1000 DPI is used as the
same default is used in libinput. If the option is not set no scaling
will be done.
https://bugs.freedesktop.org/show_bug.cgi?id=88134
Signed-off-by: Thomas Hindoe Paaboel Andersen <phomes@gmail.com>
Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Diffstat (limited to 'src/evdev.c')
| -rw-r--r-- | src/evdev.c | 24 |
1 files changed, 18 insertions, 6 deletions
diff --git a/src/evdev.c b/src/evdev.c index da25b56..17d9d61 100644 --- a/src/evdev.c +++ b/src/evdev.c @@ -25,6 +25,7 @@ * Adam Jackson (ajax@redhat.com) * Peter Hutterer (peter.hutterer@redhat.com) * Oliver McFadden (oliver.mcfadden@nokia.com) + * Thomas H.P. Andersen (phomes@gmail.com) */ #ifdef HAVE_CONFIG_H @@ -432,31 +433,36 @@ EvdevProcessValuators(InputInfoPtr pInfo) /* Apply transformations on relative coordinates */ if (pEvdev->rel_queued) { - int deltaX = 0, deltaY = 0; + double deltaX = 0, deltaY = 0; if (valuator_mask_isset(pEvdev->rel_vals, REL_X)) - deltaX = valuator_mask_get(pEvdev->rel_vals, REL_X); + deltaX = valuator_mask_get_double(pEvdev->rel_vals, REL_X); if (valuator_mask_isset(pEvdev->rel_vals, REL_Y)) - deltaY = valuator_mask_get(pEvdev->rel_vals, REL_Y); + deltaY = valuator_mask_get_double(pEvdev->rel_vals, REL_Y); if (pEvdev->swap_axes) { - int tmp = deltaX; + double tmp = deltaX; deltaX = deltaY; deltaY = tmp; } + if (pEvdev->resolution > 0) { + deltaX *= DEFAULT_MOUSE_DPI / pEvdev->resolution; + deltaY *= DEFAULT_MOUSE_DPI / pEvdev->resolution; + } + if (pEvdev->invert_x) deltaX *= -1; if (pEvdev->invert_y) deltaY *= -1; if (deltaX) - valuator_mask_set(pEvdev->rel_vals, REL_X, deltaX); + valuator_mask_set_double(pEvdev->rel_vals, REL_X, deltaX); else valuator_mask_unset(pEvdev->rel_vals, REL_X); if (deltaY) - valuator_mask_set(pEvdev->rel_vals, REL_Y, deltaY); + valuator_mask_set_double(pEvdev->rel_vals, REL_Y, deltaY); else valuator_mask_unset(pEvdev->rel_vals, REL_Y); @@ -2293,6 +2299,12 @@ EvdevProbe(InputInfoPtr pInfo) pEvdev->invert_y = xf86SetBoolOption(pInfo->options, "InvertY", FALSE); pEvdev->swap_axes = xf86SetBoolOption(pInfo->options, "SwapAxes", FALSE); + pEvdev->resolution = xf86SetIntOption(pInfo->options, "Resolution", 0); + if (pEvdev->resolution < 0) { + xf86IDrvMsg(pInfo, X_ERROR, "Resolution must be a positive number"); + pEvdev->resolution = 0; + } + str = xf86CheckStrOption(pInfo->options, "Calibration", NULL); if (str) { num_calibration = sscanf(str, "%d %d %d %d", |